able

superl.

  1. Fit; adapted; suitable.
  2. Having sufficient power, strength, force, skill, means, or resources of any kind to accomplish the object; possessed of qualifications rendering competent for some end; competent; qualified; capable; as, an able workman, soldier, seaman, a man able to work; a mind able to reason; a person able to be generous; able to endure pain; able to play on a piano.
  3. Specially: Having intellectual qualifications, or strong mental powers; showing ability or skill; talented; clever; powerful; as, the ablest man in the senate; an able speech.
  4. Legally qualified; possessed of legal competence; as, able to inherit or devise property.

a.

  1. To make able; to enable; to strengthen.
  2. To vouch for.